Sky High Car Audio FMX Series 8" Subwoofer – 800W RMS D1/D2

Sky High Car Audio FMX Series 8" Subwoofer – 800W RMS D1/D2
Sold by AudioSellerz.com

The Sky High Car Audio FMX Series 8" Subwoofer packs true subwoofer performance into a compact 8 inch frame—perfect for builds where space is tight but output still needs to hit hard. Part of the FMX “Forged to Perform. Built to Endure.” lineup, this 8 inch sub is engineered with an overbuilt motor, rugged suspension, and high thermal capacity so it can handle real-world abuse in daily, demo, or show setups.

The FMX 8 is ideal for under-seat boxes, behind-seat truck enclosures, tight trunk builds, and creative custom installs where a traditional 10" or 12" won’t fit. Even in a small enclosure, it delivers strong low-end, tight response, and the kind of output you expect from Sky High Car Audio.

Available in dual 1 ohm (D1) and dual 2 ohm (D2) voice coil options, the FMX 8 makes it easy to design low-impedance systems on modern monoblock amplifiers or run multiple subs together for serious cone area in a compact space.

Key Features – Sky High Car Audio FMX 8" Subwoofer

• Size: 8 inch FMX Series high-performance subwoofer

• RMS Class: 800W RMS class small-frame sub (FMX family design and construction)

• Series: FMX – Forged to Perform, Built to Endure

• Voice Coil: High-temperature dual voice coil design (D1/D2 options)

• Motor: Overbuilt motor structure focused on control, power handling, and reliability

• Suspension: Heavy-duty spider and surround package for high excursion in small enclosures

• Design Focus: Real-world durability, thermal stability, and strong output from compact boxes

• Ideal Install Types: Under-seat enclosures, behind-seat truck boxes, small trunk/SUV installs, and multi-8" custom builds

Great For

• Small ported or sealed 8" subwoofer enclosures

• Under-seat and behind-seat bass upgrades

• Multi-sub arrays where space is limited but you still want big output

• Bassheads who want an 8 inch sub that acts like a “real” woofer, not a toy mid-bass

The Sky High Car Audio FMX Series 8" Subwoofer is a serious option for compact bass builds—reliable, strong, and ready for abuse when paired with the right enclosure and amplifier, backed by the crew at AudioSellerz.com

Helpful Audio Sellerz Links

Finishing a wiring install? Shop car audio power wire and ground wire, car audio fuse holders and fuse blocks, Big 3 upgrade kits, and Sky High Car Audio amp kits.

For more installation help, read the car audio wire gauge and fuse guide and the car audio grounding guide.

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